Breakdown of L'accesso a questo concorso è gratuito per chiunque.
essere
to be
questo
this (masculine)
per
for / in order to / because of
a
to / at
Questions & Answers about L'accesso a questo concorso è gratuito per chiunque.
Does chiunque ever change its ending for plural or feminine?
I learned that chiunque triggers the subjunctive. Why isn't there a subjunctive verb here?
Chiunque only requires the subjunctive when it acts as the subject of a following verb, meaning "whoever [does something]" (like chiunque venga, whoever comes). Here, it simply means "anyone" and is the object of the preposition per, with no verb coming after it.
Why use gratuito for "free" instead of libero?
Gratuito specifically means "free of charge" (it costs no money). Libero means "free" in the sense of liberty, unrestrictedness, or availability (like a free country, or an empty seat).
Concorso looks like "concourse", but it means "competition"?
Exactly, it's a false friend. Concorso usually means a "contest", "competition", or a "competitive exam" (very common in Italy for public service jobs). If you want to say "competition" in a sports context, you would normally use gara or competizione.
Do you always use the preposition a with ?